a(HBP:maitotoxin) increases a(CHEBI:"calcium(2+)")

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PubMed:10537045

For these studies, SH-SY5Y cells stably overexpressing tTG were used. tTG coimmunoprecipitated with tau, and elevating intracellular calcium levels with maitotoxin resulted in a 52 +/- 4% increase in the amount of tTG that coimmunoprecipitated with tau. The increase in association of tTG with tau after treatment with maitotoxin corresponded to a coimmunolocalization of tTG, tTG activity, and tau in the cells. Further, tau was modified by tTG in situ in response to maitotoxin treatment. In vitro polyaminated tau was significantly less susceptible to micro-calpain proteolysis; however, tTG-mediated polyamination of tau did not significantly alter the microtubule-binding capacity of tau.

Related Edges 7

• a(CHEBI:"calcium(2+)") positiveCorrelation complex(p(HGNC:MAPT), p(HGNC:TGM2))
• a(HBP:"microtubule-binding region") association act(p(HGNC:TGM2))
• a(HBP:maitotoxin) increases act(p(HGNC:TGM2))
• p(HGNC:MAPT) positiveCorrelation p(HGNC:TGM2)
• complex(p(HGNC:MAPT), p(HGNC:TGM2)) positiveCorrelation a(CHEBI:"calcium(2+)")
• p(HGNC:TGM2) positiveCorrelation p(HGNC:MAPT)
• act(p(HGNC:TGM2)) association a(HBP:"microtubule-binding region")

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